在java中编写程序,定义一个学生类
代码如下:
package exam2;
import java.util.ArrayList;
import java.util.List;
/**
编写一个Java应用程序,该程序包括3个类:
定义一个学生类,Student有姓名,学号,选学的课程列表
定义一个课程类:课程名称,课程分数
(1)初始化一个学生,选择了三门课程,并添加到学生的属性中
(2)实现统计学生的总分功能
1.正确编写2个类(5分)
2.统计学生的总分功能(5分)
*/
public class Test {
public static void main(String[] args) {
List<Course> courses = new ArrayList<>();
// 初始化3门课程及分数
Course course1 = new Course("java", 80);
Course course2 = new Course("Math", 60);
Course course3 = new Course("English", 90);
// 课程对象添加到集合
courses.add(course1);
courses.add(course2);
courses.add(course3);
// 初始化学生对象
Student student = new Student("tom", "2015101", courses);
// student.setStuid("2015101");
// student.setStuname("tom");
// student.setCourses(courses);
// System.out.println(student);
// (2)实现统计 学生 的总分功能
int sum = sumScore(courses);
System.out.println(student.getStuname() + "学生总分:" + sum);
}
private static int sumScore(List<Course> courses) {
int sum = 0;
// 用课程对象,来获取课程的分数
for (Course course : courses) {
sum += course.getScore();
}
return sum;
}
}
package exam2;
import java.util.List;
public class Student {
// 定义一个学生类,Student有姓名,学号,选学的课程列表
private String stuname;
private String stuid;
private List<Course> courses;
public Student() {
}
public Student(String stuname, String stuid, List<Course> courses) {
this.stuname = stuname;
this.stuid = stuid;
this.courses = courses;
}
public String getStuname() {
return stuname;
}
public void setStuname(String stuname) {
this.stuname = stuname;
}
public String getStuid() {
return stuid;
}
public void setStuid(String stuid) {
this.stuid = stuid;
}
public List<Course> getCourses() {
return courses;
}
public void setCourses(List<Course> courses) {
this.courses = courses;
}
@Override
public String toString() {
return "学生姓名=" + stuname + ",学号=" + stuid + ", 课程=" + courses;
}
}
package exam2;
public class Course {
//定义一个课程类:课程名称,课程分数
private String cname;
private int score;
public Course() {
}
public Course(String cname, int score) {
this.cname = cname;
this.score = score;
}
public String getCname() {
return cname;
}
public void setCname(String cname) {
this.cname = cname;
}
public int getScore() {
return score;
}
public void setScore(int score) {
this.score = score;
}
@Override
public String toString() {
return "[课程名称=" + cname + ", 课程分数=" + score + "]";
}
}
/*
运行:
tom学生总分:230
*/
扩展资料:
Public 语句说明
1.Public 语句声明的变量在所有应用程序的所有没有使用OptionPrivate Module 的模块的任何过程中都是可用的;若该模块使用了 OptionPrivate Module,则该变量只是在其所属工程中是公用的。
2.使用Public 语句可以声明变量的数据类型。例如,下面的语句声明了一个 Integer 类型的变量。
3.Public NumberOfEmployees As Integer 也可以使用Public 语句来声明变量的对象类型。下面的语句为工作表的新实例声明了一个变量。
参考资料:百度百科-Public 语句
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